commit 03fd7e06f854d385070a6fc9714f445727c359cd
author Denys Vlasenko <vda.linux@googlemail.com> Thu Mar 29 18:03:50 2018 +0200
committer Denys Vlasenko <vda.linux@googlemail.com> Thu Mar 29 18:03:50 2018 +0200
tree 4e1b3874319a795ce7adb296b97891b7d549188e
parent 3be4b9b0dee790bc19314411f109d6dcb14f97dc

grep: fix echo "aa" | busybox grep -F -w "a" (should not match)

function                                             old     new   delta
grep_file                                           1461    1470      +9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

findutils/grep.c

diff --git a/findutils/grep.c b/findutils/grep.c
index fc6de4b..88de0d4 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -352,7 +352,7 @@
 							goto opt_f_not_found;
 					} else
 					if (option_mask32 & OPT_w) {
-						char c = (match != str) ? match[-1] : ' ';
+						char c = (match != line) ? match[-1] : ' ';
 						if (!isalnum(c) && c != '_') {
 							c = match[strlen(gl->pattern)];
 							if (!c || (!isalnum(c) && c != '_'))